Droppable: Destroying draggable inside drop callback throws TypeError

If i try to destroy a draggable element after drop like this

$('#one').draggable();

$('#two').droppable({

drop: function(event, ui) {

ui.draggable.draggable("destroy");

}

});

then i get a TypeError, because no destroy option is available.

this snippet of code reproduce the problem. notice you try it with debug console

http://jsfiddle.net/cM4Eb/1/